Publisher's Synopsis
Excerpt from Jahrbuch der Astronomie und Geophysik, Vol. 16: Enthaltend die Wichtigsten Fortschritte auf den Gebieten der Astrophysik, Meteorologie und Physikalischen Erdkunde; Jahrgang 1905
Die Parallaxen der Sterne Lalande 21185 und 7 Virginia, nach photo graphischen Aufnahmen am Cambridger Observatorium Über die relative Helligkeit von Fixsternen im Vergleiche zur Sonne.
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